*{
    margin: 0;
    padding: 0;
}
.top2{
    width: 100%;
    height: 600px;
    background-color: rgb(23,26,46);
}
.top2>div{
    position: relative;
    margin: 0 auto;
    width: 1500px;
    /*padding: 0 20%;*/
}
/*设置图片*/
.background-img>div:first-child{
    width: 100%px;
    height: 600px;
}
.background-img>div:first-child img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/*设置虚化背景*/
.img-son{
    color: white;
    /*width: 1200px;*/
    margin: 0 auto;
    /*border: 1px solid red;*/
    /*padding: 0 35%;*/
    margin-left: 500px;
    margin-top: -500px;
}
.img-son>div:first-child{
    position: relative;
    background-color: rgba(23,26,45,0.4);
    border: 1px solid silver;
    width: 600px;
    line-height: 150px;
    text-align: center;
    font-size: 50px;
    font-weight: bold;
    font-family: sans-serif;
    color: rgb(252,248,210);
}
.img-son>div:first-child:hover{
    background-color: rgb(23,26,45);
}
/*LEAVE A LIGHT NIGHT WAITING FOR PEOPLE 设置*/
.img-son>div:nth-child(2){
    position: relative;
    border-top: 3px solid rgb(252,248,211);
    background-color: rgb(22, 27, 47);
    width: 400px;
    line-height: 50px;
    text-align: center;
    margin-top: -30px;
    margin-left: 110px;
}
/*下面背景条设置*/
.background-bar{
    position: relative;
    display: flex;
    justify-content: center;
    background-color: rgba(23,26,46,0.5);
    /*border: 1px solid red;*/
    height: 60px;
    margin-top: 265px;
}
.background-bar>div{
    /*margin-left: 1500px;*/
    margin-right: -1200px;
}
.background-bar>div{
    color: white;
    /*border: 1px solid red;*/
    background-color: rgb(45,49,76);
    width: 50px;
    height: 40px;
    text-align: center;
    margin-top: 10px;
    /*margin-right: -450px;*/
}
.background-bar>div>div{
    margin-top: 5px;
    font-size: 20px;
}
